The most superior Sichuan is のたつまでにふぶくふべとなりにけ. Bai Bo.

This kind of literary thing, it is estimated that only the old man will answer.

The author of this haiku is Shigeki Saito, a modern Japanese poet (but he has been dead for more than half a century).

This haiku is one of his works.

Shangchuan is a river in Japan, almost in Yamagata Prefecture. In ancient times, this river was used for irrigation and transportation, but now it is used for hydropower generation, which shows that the current of this river is a bit urgent.

Inverse Bai Bo is a name, which means that the river flows against the current, causing white waves.

たつ means standing somewhere.

ふぶく means a snowstorm.

ゆぅふべ means ゆぅふぅ, which means strong wind.

The rest is not difficult.

The simple explanation is that the poet lived by the river in Shangchuan, and one day he heard fishermen say that there was a rare and peculiar natural landscape in this river, which the fishermen called the anti-white wave. Hearing this, the poet was very excited. He ran to the river in spite of the heavy wind and snow (presumably in winter). As a result, he really saw this magical natural phenomenon-the strong wind blowing from the lower reaches of the river made the river flow backwards and set off white waves, so he felt it and wrote this poem.

That's basically it.